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standard deviation

Cans of regular Coke are labeled as containing 12 oz
12
oz
.
Statistics students weighed the contents of 7
7
randomly chosen cans, and found the mean weight to be 12.12
12.12
ounces.
Assume that cans of Coke are filled so that the actual amounts are normally distributed with a mean of 12.00 oz
12.00
oz
and a standard deviation of 0.1 oz
0.1
oz
. Find the probability that a sample of 7
7
cans will have a mean amount of at least 12.12 oz
12.12
oz

 

Comments

I believe that the contents are measured in FLUID OUNCES, which are different from WEIGHT units.
So the wording should not mention weighing.

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